Disconnectible pipe-coupling.



Patented Nov. l8, I902.

0. LEDOVSKY.

BISCONNECTIBLE PIPE COUPLING.

(Application filed Jan, 18, 1902.)

2 Sheets$heet I.

(No Model.)

[afa- Mc Nu. 7|3,777. v Patented Nov. l8, I902. U. LEDOVSKY.

DISGONNEGTIBLE PIPE COUPLING.

(Application filed Jan. 18, 1902.) (No Model.) 2 Sheets-Sheet 2.

Price.

linemen dramas Fnrnnrr ONESIM LEDOVSKY, OF ST. PETERSBURG, RUSSIA, ASSIGNOR TO COMPANY FOR THE WORKING OF THE COUPLING VALVE SYSTEM LEDOVSKY, OF

ST. PETERSBURG, RUSSIA.

IDlSCONNECTlBLE PEPE-COUPLING.

E PEGIFICATION forming part of Letters Patent No. 713,777, dated November 18, 1902.

Application filed January 18, 1902. Serial No. 90,265- (No model.)

.20 Ml whom it may concern: vents any angular movement of the disk 0. 50

Be it known that I, ONEsIM LEDOVSKY, a Upon the disk e rests a valve 0, Figs. 11, 12, subject of the Emperor of Russia, and a resiand 13, whose lower face is adjusted tight to dent of Nixolayeffsxaya street, 57, St. Petersthe upper face of the disk e and which is proburg, Russia, have invented certain new and vided upon its periphery with three circular usefulImprovements in Disconnectible Pipeprojections 1;,which slide in a circular groove Couplings, of which the following is a speciformed by the two annular shoulders fand f fication. in the box F.

The disconnectible pipecoupling which In order to allow the valve 0 to be placed forms the object of the present invention is into the box F, the annular shoulderfisprofor the purpose of coupling sections of flexivided with three notches corresponding to the ble pipes for gases, liquids, or other fluids three projections 12 in the valve. The botunder pressure. The arrangement is such tom of the valve is provided with three aperthat when two similar couplings (with one of tures 0, arranged at an angle of one hundred [5 which each of the two sections of the pipe to and twenty degrees to each other, which corbe connected is provided) are coupled up unrespond with the apertures h in the disk c. interrupted communication is established be- \Vhen the valve 0 has been introduced into tween these sections; but as soon as the two the box F, it is rotated thirty degrees, which couplings are disconnected purposely or by causes its projections 11 to become engaged 2o accident the valves which they contain are with the shoulder f, whereupon keys (1, Figs.

automatically closed and prevent all commu- 14C and 15, are placed in the notches formed nication between the pipe and the surroundin the said shoulder f, as shown in Fig. 5. ing atmosphere. The lower end of each key d rests upon the In the accompanying drawings, Figure 1 is shoulder f, the upper end being on a level 25 aside elevation of two pipe-couplingscoupled with the upper face of the shoulder f. A

up. Fig. 2 is a plan View of the same. Fig. metal ring g, Figs. 18 and 19, bears against 3 is a vertical section on the axis of one of the the upper face of the shoulder fand prevents pipe-couplings. Fig. 4c is a plan view of the the keys cl from passing out of the notches. same. Fig. 5 is a horizontal section on the The ring g fits onto the projections pp on 30 line A B of Fig. 3. Figs. 6 to 23 are views the valve-thatis to say, the projectionspp' showing the parts of the coupling separately. on the ring are lodged in the notches or spaces As shown in Fig. 3, the pipe-coupling conbetween the projections p on the valve in sists o'fabox orshellF, provided with circular such a manner that this latter on rotation projecting flanges m and n in one piece with draws with it the ring.

35 the tube 1), to which the end of the pipe to be The ring g is fixed to the valve 0 by a nut coupled up is fixed. A rubber washer a, 25, Figs. 20 and 21, screwed onto the screw- Figs. 6 and 7, rests upon an annular shoulder threaded portion 5 on the valve. The nut is with which the lower portion of the cylinprovided with four notches u for the passage drical chamber of the box F is provided. of a key or other instrument for tightening 40 The outer edge of the washer is lodged in a up the nut.

circular groove formed by the annular shoul- A rubber washer 00, Figs. 16 and 17 is 0 ders Z and f". A metal disk e, Figs. 8, 9, and placed between the valve 0 and the ring g, 10, provided with three apertures h, arranged thus forming a tight joint. at an angle of one hundred and twenty de- Theringg is provided with aninner groove,

5 grees to each other, rests upon the said rubin which a rubber washer '0', Figs. 22 and 23,

ber washer. The diskisprovided at its lower is lodged, serving, as will be seen later, to face with a projection, which penetrates into form a hermetically tight joint when the a hole formed in a flange on the lower porcoupling is coupled up. The ring g is protion of the box F. The projection 0 previded with teeth K K, serving to open the coupling described when it is desired to couple it with a coupling of another systemfor example, that of Westinghouse.

When the couplings are uncoupled, the apertures h and o are at an angle of sixty degrees one to the otherthat is to say, they do not coincide. The edges of the washer a press against the shoulderf and against the disk 6, thus insuring the tightness of the joint.

The upper portion of the valve 0 is provided, as has already been stated, with two vertical projections or teeth pp, each of which extends a quarter of a circle.

In order that the couplings may be coupled together,they are placed one against the other at right angles, as shown in Fig. 4, in such a manner that the teeth 19 on one valve pass into spaces between the teeth on the other. One of the couplings is then rotated with respect to the other in the direction shown by the arrow in Fig. 4 until the flanges m of both couplings abut one against the other that is to say, that the two couplings come into the position indicated in Fig. 2, which corresponds to a relative angular displacement of the parts of one hundred and twenty degrees. As during this displacement the teeth 19 on the two valvesc prevent the latter from rotating with respect to one another and as the angle of displacement of the box F with respect to the valve is limited by the keys d to sixty degrees, it results that the 120 two boxes F will rotate sixty degrees with respect to the valves. The apertures 0 and It will then be opposite each other and direct communication will be established between the pipes of the two apparatus through the hollow valves 0. Further, the

relative displacement of the two couplings will cause the flange n of the one to slide under the flange m of the other, and vice versa, thus forming a clamp which prevents the couplingsfrom being displaced in the direction of the common axis of the valves.

The tightness of the joints is insured by the rubber washers t', the edges of which are forced by the inside pressure both the one against the other and against the rings g.

To uncouple the two couplings, itis merely necessary to turn one with respect to the other in the reverse direction one hundred and twenty degreesthat is to say, to return them to the position shown in Fig. 4. It is evident that this displacement will close the apertures 0 and h before the flanges m and 'n have been uncoupled.

I claim as my invention- A disconnectible pipe-coupling for coupling sections of flexible pipes consisting of: a cylindrical box F provided with two outer circular flanges m n, a pipe I), to which is secured the flexible pipe, integral therewith, a washer a of rubber or other flexible elastic material, lodged in a groove in the lower portion of the box F, a stationary metal disk e resting upon the said washer and provided with apertures h arranged at an angle of one hundred and twenty degrees with respect to each other, a hollow rotating valve 0 having apertures in its flat lower end, said valve forming a tight joint with the above-mentioned disk and provided with lateral circular projections o and with upward projections or teeth 19, keys d, limiting the angular movement of the valve, fitting in notches on the box F, and ring 9 immovably clamped with the valve 0 and serving to hold said keys in place, said ring having projections K, K, substantially as described.

In witness whereof I have hereunto set my hand in presence of two witnesses.

ONESIM LEDOVSKY.

Witnesses:

N. TSOHEKALOFF, J. BLAU. 

